Hydroxyl groups are a functional group found in sugars and alcohols. A hydroxyl group consists of one hydrogen and one oxygen atom and can be written as either -OH or HO-. Hydroxyl groups are polar, and the oxygen side is always negative, while the hydrogen side is always positive.

Are hydroxyl groups found in proteins?

alcoholic OH groups in serine and threonine. phenolic OH groups in tyrosine. SH groups in cysteine. COO groups in aspartic and glutamic acids.

Is the hydroxyl group found in lipids?

Dehydration synthesis reactions in lipids form an ester linkage between a fatty acid's carboxyl group and the hydroxyl group of an alcohol monomer such as glycerol. ... Amido, phosphate, and hydroxyl groups are found in sphingolipids such as sphingomyelin. Steroids are also made up of alcohol and ketone groups.